When I was 8 years old, I told my parents I wanted to make video games and asked them to buy me a book I found on game design and C++. I think I tried to read through it, but couldn't understand anything. If I knew where to start from there, things could have turned out very different for me. Instead I set the book aside as something that I would probably understand when I'm older, and wound up throwing it away at some point. I didn't even have an interest in it again, until 2010/2011 when i was 20 years old, but again didn't know where to start. 2014(ish) Zach Sims from Codecademy came on to The Daily Show and said that you don't need to go to school to learn to code and that there are plenty of tutorials online. At that point I was a senior chemistry major but also decided I would take my first attempt at coding. 2 years later, I still feel like I'm at the tip of the iceberg, but try to spend at least an hour of my day working on either a project or doing an online course.
Yes at this point I wish I started earlier, but I also don't regret how I've spent my time.